TIME (8 Sept 2021)

Mathematics Date: 8 September 2021 Time: 8:45 am- 9:45 am Class: 3H

TIME

Relationship In Time

Minutes and Seconds second hand

hour hand

minute hand

A

B

C

Say how many minutes D

E

F

A

B

5 D

15

30

C

35

Say how many minutes.

E

45

F

25

Minutes and Seconds

minute second hour

How many seconds in a minute?

Amrit took 8 minutes to make a sandwich . State the time in seconds.

Amrit took 8 minutes to make a sandwich . State the time in seconds.

8 x 60 seconds= 480 seconds

Convert the time minutes and seconds.

40 minutes = ______seconds 9 minutes = ______seconds 12 minutes = ______seconds

Convert the time minutes and seconds.

40 minutes = ______seconds 40 minutes = ______seconds = 40 x 60 seconds =2400 seconds

Convert the time minutes and seconds.

9 minutes = ______seconds 9 minutes = ______seconds =9 x 60 seconds =540 seconds

Convert the time minutes and seconds.

12 minutes = ______seconds 12 minutes = ______seconds =12 x 60 seconds =720 seconds

180 seconds =_____ minutes 180 seconds =180 ÷ 60 = 3 minutes 180 seconds =1+8+0=9 0 remainder = 0 seconds 180 seconds =_____ minutes 180÷60=18÷6=3 ( cross out the common zeros)

240 seconds =_____ minutes 540 seconds =_____ minutes 420 seconds =_____ minutes

240 seconds =_____ minutes 240 seconds =240 ÷ 60 = 4 minutes 240 seconds =2+4+6=12=1+2=3 0 remainder = 0 seconds 240 seconds =_____ minutes 240÷60=24÷6=4 ( cross out the common zeros)

240 seconds = 4 minutes 540 seconds =9 minutes 420 seconds =7 minutes

200 seconds =__minutes__seconds 200 seconds =200 ÷ 60 = 3 minutes 20 seconds 200 seconds =2+0+0=2

250 seconds =__minutes__seconds 250 seconds =250 ÷ 60 = 4 minutes 10 seconds 250 seconds =2+5+0=7

90 seconds =__minutes__seconds 90 seconds =90 ÷ 60 = 1 minutes 30 seconds 90 seconds 1 minute= 60 seconds

2 minutes 1 minute 30 seconds

3 minutes 20 seconds 10 minutes

How many minutes in a hour ?

Hour A period of 60 minutes 1 Hour = 60 minutes

State the time in minutes

3 hours = _____ minutes 3 x 60 minutes= 180 minutes